Communications: electrical – Continuously variable indicating – With meter reading
Patent
1990-07-18
1992-04-14
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
3403111, H04B 700
Patent
active
051051893
ABSTRACT:
A paging apparatus includes a first switch for turning on/off a power supply, a second switch, a memory for storing a received message, a display for displaying a message read out from the memory, a switch operation detector for detecting operations for the first and second switches, and a message controller for selectively executing a display mode of displaying the message, a preservation mode of preserving the message in the memory, and a clear mode of clearing the message stored in the memory, in response to a conbination of operations of the first and second switches detected by the switch operation detector.
REFERENCES:
patent: 4477808 (1984-10-01), Ichikawa
patent: 4872005 (1989-10-01), DeLuca et al.
patent: 4935735 (1990-06-01), DeLuca et al.
Motorola Publication, "PMR 2000 Series ", 1987, pp. 3, 11, 12.
Motorola Publication, ", Jun. 1987.
Murai Makoto
Sekigawa Tatsuaki
Kabushiki Kaisha Toshiba
Magistre Dervis
Yusko Donald J.
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